Applied Catalysis B: Environmental, volume 255, pages 117771

Urchin-like hierarchical CoZnAl-LDH/RGO/g-C3N4 hybrid as a Z-scheme photocatalyst for efficient and selective CO2 reduction

Yong Yang 1, 2
Jiajia Wu 3
Tingting Xiao 3
Zheng Tang 3
Jinyou Shen 3
HAIJIN LI 4
Yong Zhou 4
Zhigang Zou 4
Publication typeJournal Article
Publication date2019-10-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor22.1
ISSN09263373, 18733883
Catalysis
Process Chemistry and Technology
General Environmental Science
Abstract
A unique urchin-like CoZnAl-LDH/RGO/g-C3N4 (LDH/RGO/CN) Z-scheme photocatalyst, which is fabricated by the hydrothermal synthesis of CoZnAl-LDH and the in situ loading of RGO and g-C3N4, is developed for the photocatalytic conversion of CO2. The special spiny external surface and hollow inner cavity endow LDH/RGO/CN with a significantly enhanced light-harvesting capacity. The well-distributed g-C3N4 nanosheets on the CoZnAl-LDH nanoplates, combined with RGO as an electron mediator, constructs an excellent heterosystem with numerous interfaces, efficient charge separation and highly exposed catalytic active sites. The Z-scheme charge-transfer process promotes the oxidizability and reducibility of CoZnAl-LDH and g-C3N4. Furthermore, the synergistic effect among the components contributes to intense adsorption and chemical activation towards CO2, which reduces the reaction barrier for CO2 photoreduction. As a result, the optimized LDH/RGO/CN exhibits highly efficient and selective photocatalytic CO2 conversion to CO. The special 3D urchin-like architecture paves a new way for design of photocatalyst with ideal performance.

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Yang Y. et al. Urchin-like hierarchical CoZnAl-LDH/RGO/g-C3N4 hybrid as a Z-scheme photocatalyst for efficient and selective CO2 reduction // Applied Catalysis B: Environmental. 2019. Vol. 255. p. 117771.
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Yang Y., Wu J., Xiao T., Tang Z., Shen J., LI H., Zhou Y., Zou Z. Urchin-like hierarchical CoZnAl-LDH/RGO/g-C3N4 hybrid as a Z-scheme photocatalyst for efficient and selective CO2 reduction // Applied Catalysis B: Environmental. 2019. Vol. 255. p. 117771.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.apcatb.2019.117771
UR - https://doi.org/10.1016/j.apcatb.2019.117771
TI - Urchin-like hierarchical CoZnAl-LDH/RGO/g-C3N4 hybrid as a Z-scheme photocatalyst for efficient and selective CO2 reduction
T2 - Applied Catalysis B: Environmental
AU - Yang, Yong
AU - Wu, Jiajia
AU - Xiao, Tingting
AU - Tang, Zheng
AU - Shen, Jinyou
AU - LI, HAIJIN
AU - Zhou, Yong
AU - Zou, Zhigang
PY - 2019
DA - 2019/10/01 00:00:00
PB - Elsevier
SP - 117771
VL - 255
SN - 0926-3373
SN - 1873-3883
ER -
BibTex
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BibTex Copy
@article{2019_Yang,
author = {Yong Yang and Jiajia Wu and Tingting Xiao and Zheng Tang and Jinyou Shen and HAIJIN LI and Yong Zhou and Zhigang Zou},
title = {Urchin-like hierarchical CoZnAl-LDH/RGO/g-C3N4 hybrid as a Z-scheme photocatalyst for efficient and selective CO2 reduction},
journal = {Applied Catalysis B: Environmental},
year = {2019},
volume = {255},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.apcatb.2019.117771},
pages = {117771},
doi = {10.1016/j.apcatb.2019.117771}
}
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